Croatian national football team players pose for photographers before the international friendly football match Croatia against Mali in Osijek on May 31, 2014. AFP PHOT STRINGER

Croatia's forward Eduardo da Silva listens to the national anthem before the start of the 2014 World Cup international friendly football match between Croatia and Mali on May 31, 2014 in Osijek. AFP PHOTO / STR

Croatia's goalkeeper Danijel Subasic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Croatia and Mali on May 31, 2014 in Osijek. AFP PHOTO / STR

Croatia's midfielder Marcelo Brozovic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Croatia and Mali on May 31, 2014 in Osijek. AFP PHOTO / STR

Croatia's midfielder Mario Pasalic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Croatia and Mali on May 31, 2014 in Osijek. AFP PHOTO / STR

Algeria's coach Vahid Halilhodzic poses before the friendly football match between Algeria and Armenia, at the Tourbillon stadium in Sion, on May 31, 2014. AFP PHOTO/PHILIPPE DESMAZES

Croatia's forward Duje Cop listens to the national anthem before the start of the 2014 World Cup international friendly football match between Croatia and Mali on May 31, 2014 in Osijek. AFP PHOTO / STR

Croatia's midfielder Sammir listens to the national anthem before the start of the 2014 World Cup international friendly football match between Croatia and Mali on May 31, 2014 in Osijek. AFP PHOTO / STR

Croatia's midfielder Ivan Mocinic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Croatia and Mali on May 31, 2014 in Osijek. AFP PHOTO / STR

Croatia's defender Danijel Pranjic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Croatia and Mali on May 31, 2014 in Osijek. AFP PHOTO / STR

Croatia's forward Nikica Jelavic sings the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's forward Ivica Olic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's midfielder Ivan Perisic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's midfielder Mate Males listens to the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's midfielder Mateo Kovacic sings the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's defender Vedran Corluka sings the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's defender Dejan Lovren sings the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's midfielder Ivan Rakitic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's midfielder Danijel Pranjic listens to the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER

Croatia's midfielder Darijo Srna sings the national anthem before the start of the 2014 World Cup international friendly football match between Switzerland and Croatia on March 5, 2014 at the AFG Arena in St Gallen. AFP PHOTO / MICHAEL BUHOLZER